CSRF in Ghuger Custom Banners
CVE-2021-4407
The Custom Banners plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.2.2 This is due to missing or incorrect nonce validation on the saveCustomFields() function. This makes it possible for unauthenticated attackers to save custom fields via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.004 (31.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Ghuger Custom Banners — versions 0
- Goldplugins Custom_banners
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Patch)
Frequently asked questions
- What is CVE-2021-4407?
- CVE-2021-4407 is a medium-severity vulnerability in Ghuger Custom Banners, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-12.
- How severe is CVE-2021-4407?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-4407 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.